The Olympic Games are heading to Rio in 2016 (yes, we can’t believe it will be four years since London 2012 either) and the hype is already building. Join thousands in Trafalgar Square to celebrate Brazil Day and get a taste of what the vibrant country has to offer.

Up at The O2 has teamed up with London24 to give one lucky reader the chance to experience urban mountaineering this summer with an exhilarating 90-minute climb across the roof of one of London’s most iconic landmarks.